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SB_Dermatology (Pediatrics Royal College 2018) > Dermatology (To Be Sorted) > Flashcards

Dermatology (To Be Sorted) Flashcards

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1
Q

What are causes of desquemating rash

A

kawasakiscarlet fever - as rash fades

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2
Q

What is the rash associated with Scarlet fever?

A

Sandpaperblanches with pressurealong flexor creases - anticubital, axillary, inguinal -Pastia LinesDesquemation as rash fades

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3
Q

if you have a baby with intractable severe seborrheic dermatitis, what should you consider as alt Dx

A

Histiocytosis

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4
Q

how do you treat seborrjeic dermatitis?

A

frequent washingcan apply vaseline to soften itsoft brush to brush offcan try ketoconazole shampoo or cream twice a week for 2 weeks

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5
Q

baby has a raise, dark brown oval area on their leg. Some hairs are noted to be present. Dx and mgnt

A

Congenital melanocytic Neviremove in puberty bc of melanoma risk

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6
Q

what is the risk of melanoma in child with giant melanocytic nevi

A

2-10%recommend sx

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7
Q

if you have a baby with multiple hemamgiomas, wha investigation should you do?

A

AUS to look for liver hemangiomas

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8
Q

what are risk factors for hemangiomas

A

femaleprematurelow BWmultiple gestation

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9
Q

by what age shoul an hemagioma grow until?

A

12 monthplateau phase 12-18 moregression 18m to 9-10 yrs50% have lasting skin changes

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10
Q

what % of children will have residual skin changes post hemagioma?

A

50%

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11
Q

when do you worry about hemagiomas

A

periorbitalbeard areamid -linelarge segment of face - think PHACES syndromemultiples - inc risk of liver hemangiomaulcerating

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12
Q

what do you call a port wine stain

A

nevus flammeus - vascular malformation10% risk of sturge weber if in V1 distribution + glaucoma risklifelong BM

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13
Q

Features of langerhan histiocytosis

A

DIRecurrent rashBone lesions

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14
Q

what are the criteria for NF1

A

need 2 or more: CAFE SPOTCafé au lait spots- >6 (>5mm in prebubertal, >15 post)Axillary freckling or inguinalFibromatosis - 2 or 1 plexiform neurofibromaEye- Lisch nodulesSkeletal abn-dysplasia of sphenoid bone or dysplasia or thinning of long bone cortexPositive family historyOptic Tumor

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15
Q

what is the management of vitiligo?

A

strong topical steroids

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16
Q

how do you differentiate post inflammatory hypopigmentation vs pityriasis alba

A

very similarpityriasis alba will have a scale

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17
Q

what is pityriasis alba and how do we manage it?

A

eczema that causes hipopigmentationtreat with 1% hydrocortisone BID for 5-7 days

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18
Q

in what age group is tinea vesicolor more likely to occur?

A

teen because need the sebum to survive

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19
Q

how do you treat tinea vesicolor?

A

antifungal shampoo daily for 1-2 weeks

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20
Q

how do we manage staph scalded skin

A

pain mgntIV clox+/- clindamycin as anti-toxincompresses to heal skin

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21
Q

what is a distinctive feature of eczema herpeticum?

A

monomorphous rash

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22
Q

how do you manage eczema herpeticum?

A

confirm Dx via PCR- if unwell - IV acyclovir- if well, PO acyclovir for 10 days-if near the eyes, need optho assessment

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23
Q

what is the treatement for tinea Capitis

A

Itraconazole as per CPSPO terbinafine for 2-8 weeks

24
Q

what are side effects to terbinafine

A

inc LFTdecreased PMNtates alterationsuggest LFT before treatment

25
Q

How do you treat tinea corporis

A

TOPICAL - ketoconazole-clotrimazole- terbinafineNOT nystatin

26
Q

What drugs are usually responsible for SJS/TEN

A

AEDPenicillinsulpha

27
Q

what is the diff between SJS and TENS

A

SJS if 30%

28
Q

How do we manage SJS?

A

IV IG x3 d + all supportive stuff

29
Q

what is the choice of Rx for facial eczema

A

1% hydrocortisone

30
Q

What is the initial treatment for limb/trunk eczema?

A

0.05% betamathsone valerate

31
Q

What infection can precede the onset of psoriasis

A

GASespecially guttate pattern

32
Q

How do you manage psoriasis?

A

20% - UV, systemic treatmentmost have spontaneous remission weeks to months

33
Q

who might get neonatal lupus

A

if mom has anit-Ro and or Anti-Lamom does not need to be symptomaticappears up to 6 weeksresolves by 6 mo

34
Q

what infection can cause Toxic epidermal necrolysis?

A

mycoplasma

35
Q

what type of rsh might occur 2-6 weeks after starting an AED?

A

mobilliform drug eruptionreoccurs with repeated exposureusually only affects the skin

36
Q

what is drug hypersensitivity syndrome

A

mobilliform rash and either: (>1)feverpharyngitishigh LFTLNEosinophilia

37
Q

how do you manage drug hypersensitivity?

A

discontinue drugconsider alt Rxanihistaminetopical steroidif severe- oral

38
Q

what are the important characteristics of urticaria?

A

wheal are due to transient dermal edema each lesion

39
Q

how do you manage chronic urticaria?

A
  1. eliminate allergen if known2. Allergy testing if not known3. epi pen may be necessary4. antihistamine5 avoid potential triggers - NSAIDS, Alcohol, codeine, physical
40
Q

At what point can you use Tacrolimus for atopic dermatitis

A

if > 2 yrsif failed or cannot tolerate steroids

41
Q

how do you manage alopecia areata?

A

disease education -variable and recurrent,no preventiontreatment is to control (not Cure)can try potent topical steroids or mid pot injected steroidsscreen for other AI disordersWigscounselling

42
Q

what are the topical acne treatment options?

A

RetinoidsBenzoyl peroxideTopical AbxCombo

43
Q

if the acne is mostly comedomal, what is the treatment option

A

Retinoid + BP

44
Q

if the acne is inflammatory, what are the treatment options

A

BP orTopical Abx + BPcan use all 3…

45
Q

what is important for a patient to know if they are about to start Isotretinoin

A

course is 6 mo90-95% will clear after 1st coursewill cause mB dryingTeratogenic - need to be on OCPNeed baseline BHCG and LFTS

46
Q

if a lesion is stroked and urticaria occurs, what do you call that and when is it useful?

A

Darier’s signto show mastocytomasusually congenital or seen in early infancy

47
Q

how do you manage mastocytomas or urticaria pigmentosa?

A

1.discuss possible triggers - warm bath, contact, exercise, scratching,meds2.Aniti-histmaines3. rarely need epipen4.Resolves by adolescence

48
Q

what systemic features can be found with urticaria pigmentosa

A
  1. FTT2.Chronic diarrhea3. flushing4. HA
49
Q

what nevus is at risk of BCC

A

nevus sebaceoustherefore should get excised

50
Q

what are features of erythema toxicum?

A

onset 24-48 hrspeak DOL 2resolves by one weekmacules, papules, pustuleseosinophils on smear

51
Q

if smear shoes eosinophils, what baby rash is it?

A

erythema toxicum

52
Q

if smear shows PMNs, what baby rash is it?

A

transient neonatal pustular melanosis

53
Q

baby presents with pustules and no erythema, ruptured pustules with peripheral scale and hyperpigmented macules. Baby is otherwise well. Dx

A

transient neonatal pustular melanosisunknown etiologypresent at birth!!!PMNs on smearno Rx

54
Q

how do you manage seborrheic dermatitis

A

1% hydrocortisone powder in antifungal cream

55
Q

pseudoporphyria drugs

A

NSAIDSlasixcyclospretinoidstetracycline

56
Q

what are causes of erythema multiforme

A

HSV 1stMycoplasma

SB_Dermatology (Pediatrics Royal College 2018) (4 decks)

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